Question

how did the salt march become an effective tool of resistance towards colonialism

Answer 1

Salt March became an effective tool because salt is a thing which is consumed by both rich and poor

Answer 2

salt was a monopoly of the British government. By launching the salt march, they broke the slat law and it was a blow to the British economy. This movement also made the people conscious about the exploitative nature of the British. This is how it became an effective tool of resistance towards colonialism